Lead Java Full Stack Developer - Hybrid (Onsite 3-4 days)

IPolarity; Hanover Township (NJ); Hybrid; USD 140,000 - 190,000; Full time

Job summary

IPolarity is seeking a hands-on Java Full Stack Lead Developer for a W2 role with hybrid work across multiple cities. The candidate will design, develop, and deliver scalable enterprise applications using Java, Spring Boot, microservices, and Angular, while leading development efforts, architecture, and troubleshooting.

The role emphasizes building RESTful APIs, Docker containers, Kafka-based event-driven solutions, and collaboration in an Agile team to ensure performance, security, and

Qualifications

• 8+ years of hands-on Java development experience.
• Java 21+ preferred.
• Strong Spring Boot and Microservices expertise.
• Angular 19+ and RxJS.
• Docker and cloud-native development.
• Kafka and message queues.
• Relational and NoSQL databases.
• Advanced SQL – joins, stored procedures, and design.
• AI-assisted development tools such as GitHub Copilot or Windsurf.
• Git and Agile methodologies.
• Strong troubleshooting, debugging, and problem-solving skills.

Responsibilities

• Design, develop, and maintain high-performance Java applications and microservices.
• Build RESTful APIs and microservices using Spring Boot.
• Develop and deploy containerized applications using Docker.
• Implement event-driven solutions using Kafka and MQ.
• Collaborate with cross-functional teams in an Agile environment.
• Optimize application performance, scalability, security, and reliability.
• Participate in code reviews, testing, debugging, and technical delivery.

Skills

Java experience

Troubleshooting

Agile

Leadership

Teamwork

Architecture

Tools

Spring Boot

Microservices

Docker

Kafka

RxJS

Angular

Git

Cloud-native

Job description

IPolarity is seeking a hands-on Java Full Stack Lead Developer for a W2 role with hybrid work across multiple cities. The candidate will design, develop, and deliver scalable enterprise applications using Java, Spring Boot, microservices, and Angular, while leading development efforts, architecture, and troubleshooting.

The role emphasizes building RESTful APIs, Docker containers, Kafka-based event-driven solutions, and collaboration in an Agile team to ensure performance, security, and